Universal Input AC/DC Switching Buck Regulator – 85V -265V AC Input – 5V/150mA DC Output

https://www.electronics-lab.com/project/universal-input-ac-dc-switching-buck-regulator-85v-265v-ac-input-5v-150ma-dc-output/

The project presented here is a universal input AC/DC switching buck regulator with ultra-low standby power that is capable of delivering up to 2.5W output power. The RAA223012 chip is the heart of the project which combines constant off-time control for heavy load and Pulse Frequency Modulation (PFM) for light-load operation. Constant off-time controls switching […]